Time resolved photometric and spectroscopic analysis of chemically peculiar star

Abstract

Here we present the report on the "Nainital-Cape survey" research project aiming to search for and study the pulsational variability of main-sequence chemically peculiar (CP) stars. For this study, the time-series photometric observations of the sample stars were carried out at the 1.04m ARIES telescope (India), while the high-resolution spectroscopic and spectro-polarimetric observations were carried out at the 6.0m Russian telescope. Under this project, we have recently found clear evidence of photometric variability in the Am star HD 73045, which is likely to be pulsating in nature with a period of about 36min, hence adding a new member to the family of the δ Scuti pulsating variables that have peculiar abundances.